//
// Nullable.cs: Nullable<T> extension methods.
//
// Author:
//   Jonathan Pryor  <jpryor@novell.com>
//
// Copyright (c) 2008 Novell, Inc. (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;

namespace zielonka.co.uk.framework.math_ {

	public static class NullableCoda {

		public static Maybe<T> Just<T> (this T? self)
			where T : struct
		{
			if (!self.HasValue)
				throw new ArgumentNullException ("self");
			return new Maybe<T> (self.Value);
		}

		public static Maybe<T> ToMaybe<T> (this T? self)
			where T : struct
		{
			if (!self.HasValue)
				return Maybe<T>.Nothing;
			return new Maybe<T> (self.Value);
		}
	}
}

